Used BOSS Sd-1 4a Effect Pedal

Used BOSS SD-1 4a Super OverDrive pedal in good condition, delivering classic warm overdrive tones perfect for rock and blues. Featuring asymmetrical clipping for a natural tube-like sound, this pedal includes Level, Tone, and Drive controls for easy sound shaping. Powered by 9V battery or AC adapter (not included), it's built with BOSS’s signature durability. Ideal for boosting solos or adding grit to your rhythm playing, this compact pedal is a timeless addition to any setup.